LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Controls - On-Vehicle Adjustments - 4-Cylinder) >> Idle Speed & Mixture >> CAMRY

Idle Speed & Mixture: CAMRY

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tacoma, 2002 Toyota RAV4, 2002 Toyota Prius, 2002 Toyota MR2, and 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. Idle speed is controlled by Engine Control Module (ECM) and is not adjustable. Check idle speed with engine at normal operating temperature, transaxle in Neutral, parking brake applied, air cleaner and all air intake hoses installed, all vacuum hoses installed, electronic fuel injection system wiring connectors properly installed, ignition timing properly set, electric cooling fan off, and A/C and all accessories off.
  2. If Toyota hand-held tester is available, go to next step. If Toyota hand-held tester is not available, go to step  5.
  3. Start engine and warm engine to normal operating temperature. Shut engine off. Connect Toyota hand-held tester to data link connector No. 3 at driver's side of instrument panel. See Figure. Hand-held tester is used to read engine RPM. Apply parking brake. Place transaxle in Neutral. Start engine and allow engine to idle while noting idle speed. Ensure idle speed is within specification. See IDLE SPEED SPECIFICATIONS  table. Shut engine off. Remove hand-held tester.
  4. If idle speed is not within specification, check air intake system. If air intake system is okay, check throttle body. See IDLE CONTROL SYSTEMS in SYSTEM & COMPONENT TESTING - 4-CYLINDER article.
  5. Start engine and warm engine to normal operating temperature. Shut engine off. Note location of data link connector No. 3 at driver's side of instrument panel. See Figure. Using Jumper Wire (SST 09843-18020 or SST 09843-18040), connect tachometer lead to terminal No. 9 (TAC) on data link connector No. 3. See Figure. Apply parking brake. Place transaxle in Neutral. Start engine and allow engine to idle while noting idle speed. Ensure idle speed is within specification. See IDLE SPEED SPECIFICATIONS  table. Shut engine off. Disconnect tachometer.
  6. If idle speed is not within specification, check air intake system. If air intake system is okay, check throttle body. See IDLE CONTROL SYSTEMS in SYSTEM & COMPONENT TESTING - 4-CYLINDER article.
scientia non olet · About LEMON Manuals